Sectional door



Jan. 29, 1935. R, H- GREEGQR 1,989,513

SECTIONAL DOOR Filed April 29, 1932 2 Sheets-Sheet 1 ATTORN EY Jan.. ,29, 193s.l

R. H. GREEGOR sEcTIoNAL Doon Filed April v29, 1952 2' sheets-sheetl 2 ATTOR EY BYJ to an open position and from an open to a r Patented Jan. 29, 1935 PATENT OFFICE 1,989,513 SECTIONAL` DOOR Balph H. Greegor, Columbus,

The Kinn a corporation of Ohio ear Mfg. Company, Columbus,

Ohio, assignox' to Ohio,

Application April 29, 1932, Serial No. 608,281 6 Claims.- (Cl. 189-56) This invention relates to improvements in sectional doors of the rolling curtain transverse slat type, and has for its object to provide means for guiding the door in its movement from a closed closed position.

It is particularly the object of this invention to provide, in connection with a. wall having a doorway therein, guides on the wallA adjacent the doorway for guiding a door, with means in each guide for securely holding the door against swinging movement and to provide a seal between the wall and the door, whereby gases, smoke and other similar materials are prevented from escaping through the doorway.

It is a further object of this invention to provide, in connection with a rolling curtain door composed of a plurality of slats, and wearing members located at each end of each slat and adapted to be engaged by yieldingly-urged sealing members for securely closing the door and preventing the escape of smoke, gases and similar substances.

It is also an object of this invention to provide a rolling curtain door composed of a plurality of interengagng slats with wearing members on each end adapted to cooperate with yieldinglyurged sealing members associated with guide members for forming a sealing connection between the door and the supporting wall of the door.

'Ihese and other advantages will appear from the following description taken in connection with the drawings.

Referring to the drawings:

Figure 1 is a side elevation of applicants door structure in closed position attached to one side of the wall of a. building to form a closure for a passageway through the wall.

Figure 2 is a section on the line 2-2 of Figure l.

Figure 3 is a vertical section through a part of the wall and a doorway, showing the relation between the wall and the door and its supporting structure.

Figure 4 is a vertical longitudinal section across a plurality of slats forming the door.

Figure 5 is an enlarged end view of one side of the door, showing the ends of a plurality of slats forming -the door, with end locks on alternate slats.

Figure 6 is a view similar to Figure 5 but from the other side of the door.

Figure 'I is a horizontal section through one form of door supporting guide.

Figure 8 is a similar section through a slightly modiiied form of door guide.

Figure 9 is a section through another form of door guide.

Figure 10 is a section through still another 5 form of door guide.

The present door is adapted to be used in various types of buildings, and is especially adapted to be used for the purpose of preventing the escape ofhe'at and the passage of gases and to pro- 10 tect against bad weather. In Figures 1, 2 and 3 there is shown a part of a wall 1 of a building, in which there is a doorway 2. Extending vertically on each side of the doorway and attached to the wall is a bracket 3 in the shape of 15 an angle iron, as shown in Figures 'Z to l0.

The closure for the passageway is in the form of an articulate or rolling curtain door 4, which is composed of interlocking steel slats 5, the upper edge of each of which is rolled, as indicated by 20 the numeral 6, and engages a similarly rolle'd lower edge 7 of the immediately adjacent and lower slat. These slats are arcuate and each slat has at each end a wearing member 8, 'most clearly shown in Figures 4 and 6.

The back of each wearing member 8 is arcuate to closely ilt in and. engage the trough-like surface of the slat, while the outer surface of each wearing member 8 issubstantially in alignment with the rolled edges of the slat so that when the door is in a closed position these wearing members 8 form a continuous surface, composed of the surface of each wearing member 8, as clearly shown in Figure 4. By means of this continuous surface sealing means may be provided to engage 85 the wearing member 8 for preventing the passage k of gases and smoke around the lateral edges of the door, as will presently appear.

These wearing members 8` arev attached to the slats by means of rivets 9. Every alternate wearing member 8 has thereon an end lock 10 to prevent lateral displacement of the slats with respect to one another. The door is supported along one face or side of the wall by means of a roller l1, to which one 4end of the door isattached. This roller,` with one end of -the door, is located within a housing 12.

The roller is operated by means of a gear 13, located on a roller shaft 14 and without the housing, as is clearly "seen lfrom Figure 2. For operatingv the gear 13 there is provided a gear, not shown, on a shaft 16 suitably mounted on a bracket or frame structure 12a at the lower edge of one end of the housing. On, this shaft 16 is a sprocket wheel l5 for rotating the roller 11 by 2 means of a chain 17 engaging the sprocket wheel 15.

n each side of -the doorway and attached to the bracket 3 is a channel shaped guide composed of either a plurality of plates or angle irons. In the form shown in Figures 7 and 8, the guides are composed of guide plates 19 and 20, supported by means of an angle iron 18 having one arm attached to the guide plates, while its other arm is attached to one arm of the bracket 3. The guide plates 19 and 20 are held in spaced relatlonship to each other by means of angle irons 21, adjacent the plate 19, and angle irons 22, adjacent the plate 20.

Between these angle irons is a spacer block 23.-

'I'he guide plates, the angle irons 21 and 2,2 and the spacerblock 23 are attached to each other by means of rivets. These angle irons 21 and 22 are so positioned with relation to each other that one of the arms of the angle iron 21 constitutes a projection 25a. forming an abutment within the bottom ofthe channel-shaped guide. Each of guide plates 19 and 20 is attached to the' angle iron 18 along one edge. To the other edge of the guide plate 20 is attached one edge of a spring member 24, which has attached to its other edge a strip 24a bent along one edge 25, to fit behind the abutment or stop 25a and between this abutment and the angle iron 22.

'Ihe projection 25a acts as a stop for the spring member 24 to hold the latterspaced from the plate 19. 'I'his spring member is more or less resilient and has on one face thereof, between the edges, a sealing member 26 which is composed of wood, belting or other fibrous and similar material. 'I'his sealing member 26 is located between the spring member 24 and the wearing members 8 on the ends of the slats that form the door. It is therefore apparent that the sealing members 26 are urged by their spring members 24 into sealing engagement wtih the wearing members 8 on the opposite lateral edges of the door, thereby preventing the passage of gas, smoke, flames or water around the door.

In the form shown in Figure 8 the same guide plates are used, but instead of having spacing members including two angle irons, the angle iron 21 is discarded and a stop strip 27, forming an abutment, is used to take the place of the projection or abutment 25a. The spring member 24 engages the strip 27 since the strip 24a has been omitted.

In Figure 9 a diierent form of guide is shown. In this form the channel-shaped guide member is composed of two angle irons 28 and 29, attached by means or rivets to the angle iron bracket 3.

'Ihere is also attached to one side of one of the arms of thevangle iron 29 a third angle iron 30. 'I'his angle irongcooperates with the angle iron 29 to more securely guide the door and hold it closed in tight fittingengagement with the angle' iron 28. It also serves to keep dust and other foreign materials out of the contacting parts in the channel guide.

Between an abutment 31 and the angle iron 29 is attached one edge of a spring member 32, which is bent to extend in a line substantially parallel with the side of the door, and has thereon a sealing member 33 similar to the sealing member 26. The form shown in Figure is similar in all respects to that shown in Figure 9, with the exception that the spring member 34 in this form is supported at one edge between the angle'irons 29 and 30, while its other edge is bent in a loop form toward the abutment 31. -This spring member 34 also has on it a sealing member 33.

In Figures 1 and 3 the door is shown in position to close the passageway through the wall. If it shouldbe desired to open the door the chain 17 is operated to rotate the roller 11, whereb the door is rolled upon the roller. r- 1.,

It is to be notedthat the connection between the slats is such that any rain or moisture that may accumulate on any slat may drop from one slat onto the other without passing into the space between the engaging rolled edges of the slats. By this means moisture is prevented from passing from one side of the door to the other, and the close interengagement between the slats prevents the passage of gases and smoke through the door. The sealing construction and guide structure on each side of the doorway closely engages the lateral edges of the door so that gases, smoke and moisture cannot pass around the lateral edges of the door from one side of the door to the other.

'I'his close sealing engagement at the lateral edges of the door is brought about by applicants wearing members 8, as shown clearly in Figure 4, cooperating with the sealing members 26 urged thereagainst by the spring members 24.

It will be understood that I desire to comprehend within my invention such modifications as come within the scope of my claims Aand my invention.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a door structure, a roll door composed of arcuate interengaging slats, wearing members on said slats, fa guide for each lateral edge of the door, and a resiliently-mounted sealing member adapted to engage said wearing members whereby to prevent gases and smoke from passing around the lateral edges of the door.

2. In a door structure, a roll door composed of arcuate interengaging slats, wearing members on said slats, a guide for each lateral edge of the door, sealing members adapted to engage said wearing members, and means to yieldingly urge said sealing members into engagement with said wearing members whereby to prevent gases and smoke from passing around the lateral edges of the door. 3. In a door structure, a rolldoorcomposed of arcuate interengaging slats, wearing members on said slats near the opposite ends thereof, a

guide for each lateral edge of the door, sealing members associated with said guides and adapted to engage said wearing members, and means to yieldingly urge said sealing members into engagement with said wearing members whereby to prevent gases and smoke from passing around the lateral edges of the door.

4. In a door structure, a roll door composed of arcuate interengaging slats, wearing members on said slats and adapted to form a ridge along eachlateral edge of said door in the closed posiwearing members, said wearing members having approximately flat surfaces at their points' of engagement by said sealing members, and means to yieldingly urge said sealing members into engagement with said wearing members whereby to prevent gases and smoke from passing around the lateral edges of the door.

6. In a door structure, a roll door composed of arcuate interengaging slats, Wearing members on said slats, a guide for each lateral edge of the door, sealing members adapted to engage said wearing members, said wearing members having extended portions. adapted to prevent the endwise motionv of said slats relatively to one another, and means to yieldingly urge said sealing members into engagement with said wearing members whereby to prevent gases and smoke from passing around the lateral edges of the door.

RALPH H. GREEGOR. 

